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Locations

Cullen Umosella Cullen and Cullen

Appointment Phone: 240-497-1570
7625 Wisconsin Ave
Suite 101
Bethesda, MD 20814 map
Phone: 240-497-1570 | Fax: 301-657-5638

Background

Dr. Dennis A. Cullen is an internist affiliated with Sibley Memorial Hospital. He practices out of Cullen, Umosella, Cullen & Cullen in Bethesda, Md. and Oxon Hill, Md.

Dr. Cullen earned his medical degree from Georgetown University School of Medicine. He completed a residency in internal medicine at Georgetown University Hospital. 

Dr. Cullen has been named a Top MD by Consumers’ Checkbook Magazine, as well as a Top Family/General Practitioner and a Top Internist by Washingtonian Magazine. 

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Departments / Divisions

  • Medicine at Sibley Memorial Hospital

Education

Degrees

  • MD; Georgetown University School of Medicine (1982)

Residencies

  • Internal Medicine; Georgetown University School of Medicine (1985)

Board Certifications

  • American Board of Internal Medicine (Internal Medicine) (1986)

Activities & Honors

Honors

  • Top M.D., Consumers' Checkbook
  • Top Family/General Practitioner, Washingtonian Magazine
  • Top Internist, Washingtonian Magazine

Professional Activities

  • Assistant Team Physician and Team Internist, Washington Nationals Major League Baseball Team

Videos & Media

Recent News Articles and Media Coverage

The Brothers Cullen. Bethesda Magazine (January/February 2008)

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